This is a Gold Brass model 25L made by Paxman. It's in gorgeous condition with perfect compression (0.1). It is made of unlacquered gold brass with a detachable bell (Original Paxman bell ring). The thumb valve is a mechanical mechanism allowing for quick easy change to set the horn in either F or Bb. An aftermarket Duck's Foot/Flipper has been added for comfort (and for helping play those high notes that need a bit more left arm bicep workout).
Paxman horns sound fabulous. I'd venture to say that you can find one in almost every single horn section around the world.
Paxman detachable bell case included.